JPS63164113A - Flat harness of automobile or the like and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field The present invention is applicable to the transportation of automobiles, aircraft, ships, etc. The present invention relates to a flat harness used for the wiring of appliances, household electrical equipment, industrial streetcar equipment, etc., and a manufacturing method thereof, and in particular, to form a flat harness with a good appearance without much effort and time. In addition, it is an automatic L
The present invention relates to a flat harness such as Tl- and its manufacturing method.

([,) Conventional technology Transportation equipment such as automobiles, aircraft, ships, etc. are equipped with various electrical components and control devices, and the wiring members installed between these electrical components and control devices are In order to avoid confusion and facilitate operations such as camouflage, maintenance, inspection, and replacement, route the wiring as much as possible in a common route, and in the common wiring sections, bundle the wiring with binding tools or glue the wiring members together. Alternatively, the wiring members are aligned and fixed to a suitable sheet-like back member.

One or more wiring members formed into a unit in this manner are called a harness unit, and a wiring assembly consisting of one or more harness units is called a harness.

Furthermore, a harness refers to a harness bunt or a harness in which each wiring member is wired side by side on a common plane. For example, it is used in a flat space such as the inside of a car door side panel. Refers to something suitable for wiring.

Some flat harnesses are used for wiring that does not branch or merge along the way, such as connection cables that connect a computer and its peripherals, and others are used for wiring that does not branch or merge in the middle, such as connection cables that connect a computer and its peripherals. Some wires are used for wiring that has connections or joins in the middle, such as harnesses that connect control switches.

As a method for manufacturing a flat harness, for example, as disclosed in Japanese Utility Model Publication No. 56-19291,
■ A method of arranging synthetic resin-coated electric wires on a sheet-like synthetic resin back member arranged on a predetermined pattern 11 and heat-sealing the back member and the synthetic resin-covered electric wire by applying heat and pressure; ■The combination rI1 arranged in a predetermined pattern. ■Method of bonding the contact areas of resin-coated electric wires with a solvent by dissolving them with a solvent and drying them; ■Method of bonding the contact areas of synthetic resin-coated electric wires arranged in a predetermined pattern with adhesive; A method is known in which synthetic resin-coated electric wires arranged in a pattern are fixed from both sides with adhesive tape.

(c) Problems to be solved by the invention However, in these conventional flat harness fi application methods, a specified wiring pattern is drawn on a flat plate in advance, each wiring member is placed on top of this, stacked, crossed, etc. It is necessary to check that there are no such defects before fusing or gluing the whole or required parts.

The problem here is the work of assembling each wiring member into a predetermined wiring pattern.

That is, each wiring member usually has a tendency to bend, and it is necessary to correct the bending tendency while mounting the wiring member on the wiring pattern, which poses the problem of requiring a lot of effort, effort, and time. Moreover, there are cases where the bending tendency is not sufficiently corrected and the appearance is impaired.

In particular, it is extremely difficult to position, shape, and align each wiring member in branch areas and curved wiring areas, and it is extremely difficult to arrange and fix the wiring members neatly, making these fixings even more difficult. It will be worn.

Furthermore, when fixing each wiring member to each other or each wiring member and the back member by fusion bonding or adhesion, there is also the problem that the covering material of each wiring member and the material of the back member must be the same.

The present invention has been made in consideration of the above-mentioned circumstances, and it is possible to manufacture a flat harness with a good appearance without much effort or time, and even when the covering materials are the same or different, i.e. Regardless of the covering material, power lines, electrical signal lines, and 4Q k! ? To provide a flat harness for an automobile, etc., and a method for manufacturing the same, in which the wiring #X members can be freely combined and the harness band can be easily divided at a branch point. The purpose is to

(d) Means for Solving the Problems In order to achieve the above object, the seven-rad harness for automobiles, etc. according to the present invention has a plurality of wiring members wired along a predetermined surface and a wire harness suitable for these wiring members. Consisting of harness bands fused at intervals, each harness band comprising:
Consisting of a thermoplastic resin layer having a required number of insertion holes for inserting each wiring member, and a resin laminated on both the front and back surfaces of this thermoplastic resin layer and having a higher melting point than the thermoplastic resin layer. A technical measure has been taken in which auxiliary holes for cutting are formed along the various through holes at appropriate intervals in the thermoplastic resin layer.

The present invention will be explained in detail below.

The wiring member used in the present invention is not particularly limited, and may include copper wire coated with synthetic resin such as polyethylene or polyvinyl chloride, resin-coated metal wire such as aluminum wire, iron wire, or copper wire; Bare metal wires such as aluminum wires and iron wires, optical fibers coated with metal or synthetic tPJ4 resin, bare optical fibers, etc., generally power lines,
Examples include signal transmission lines that transmit electrical signals or optical signals.

A feature of the present invention is that a harness band that arranges and fixes a plurality of wiring members in a flat shape in the horizontal direction includes a thin thermoplastic layer having a required number of insertion holes through which each of the wiring members is inserted, and The thermoplastic resin layer is laminated on both the front and back sides of the U group 1, and is composed of a release layer made of a resin having a higher melting point than the thermoplastic resin layer. It is located in the nozzle formed along the insertion hole.

The thermoplastic UI resin layer has required electrical properties such as electrical insulation, mechanical properties such as vibration resistance, impact resistance, and flexibility, and fire resistance properties such as self-extinguishing property and flame retardancy. A layer formed of a resin having at least one of , heat resistance, chemical resistance, weather resistance, etc. is preferable.

The TJI resin used for coating wiring members includes copper wire,
There are no particular limitations as long as it is used to coat metal wires such as aluminum wires, power lines such as optical fibers, and signal transmission lines that transmit electrical signals or optical signals, but specific representative examples include: , polyethylene, polyvinyl chloride, polyester, polyamide, polyurethane, etc.

When forming the thermoplastic WI layer using these resins, it is desirable to use the same resin as the coating material for the wiring member.

With this configuration, the coating resin and the thermoplastic resin layer of the wiring member can be fused to each other and firmly fixed.

Further, in a preferred embodiment of the present invention, the thermoplastic rH resin layer is formed of a hot melt resin, and the thermoplastic rH resin layer is formed of a hot melt resin. This is desirable because the wiring member can be fused and fixed with any covering material.

The hot melt resin used in the present invention is not particularly limited, but includes, for example, polyethylene and its copolymers, polyamide hot melt mm, polyester hot melt NjflJff, butyral hot melt) 0I resin, polyvinyl acetate, and V Copolymer based hot melt resin, cellulose derivative based hot melt resin, vinyl chloride-vinyl acetate copolymer, polymethyl methacrylate based hot melt resin, polyvinyl ether based hot melt resin, polyurethane based hot melt resin, polycarbonate based hot melt resin Resin such as resin is used. Examples of polyethylene and copolymers thereof include polyethylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate hot melt tree,
Typical examples include ethylene-isobutyl acrylate copolymer hot melt resins.

Further, the above-mentioned hot-melt resins include those blended with various antioxidants.

When forming a thermoplastic resin layer using the above-mentioned melt-based resin, what should I do? )The melting point of melt-based resins varies depending on the usage conditions of wiring materials and the temperature during use (heat generation and environment): rfi
However, it is desirable to select and use one whose melting point is higher than the temperature during use and relatively low.

A plurality of insertion holes for passing wiring members are formed in the thermoplastic resin layer, but the size of the insertion holes is not particularly limited as long as the wiring members can be inserted therethrough, and in general, , which is slightly larger than the diameter of the wiring member.

Further, in the present invention, auxiliary holes for cutting are formed in the thermoplastic resin (3) along each of the insertion holes at appropriate intervals, and the auxiliary holes for cutting are formed at branch points of the wiring member. The groove is used to facilitate cutting of the harness band, and its shape is not particularly limited.

The release layer used in the present invention is not particularly limited as long as it is made of a resin with a melting point higher than that of the thermoplastic resin layer (glue) described above, In order to keep the working temperature as low as possible, the temperature difference between the melting points of
Most preferably, the temperature is °C.

When the above-mentioned mold release layer fuses and fixes the wiring member with a harness band using a hot plate, etc., the thermoplastic IJ5 resin layer fuses to the real plate etc., resulting in poor mold releasability.
This is to prevent the occurrence of molding, which could cause the thermoplastic resin layer to flow and collapse, resulting in poor appearance.

The resin constituting the release layer is not particularly limited as long as it has a higher melting point than the thermoplastic resin layer, and examples thereof include polyesters such as polyethylene terephthalate resin, cellophane, polycarbonate resin, polyethylene R3F resin, and polypropylene U (so-called polyester resin). Vinyl chloride resin, polyvinylidene chloride resin, polyamide resin, etc. are used.

As a specific example, if the thermoplastic resin layer is made of polyvinyl chloride resin, polyethylene terephthalate with a higher melting point and α than this may be selected and used for the release layer. It is.

The thermoplastic resin layer and the release layer are bonded together via a primer such as a hot melt adhesive.

Although it is possible to use an adhesive that can bond the thermoplastic resin layer and the release layer without heating as the primer, it is preferable to use a hot melt adhesive that is easy to handle and can improve workability. preferable.

In this case, the melting point of the primer is required to be lower than that of the thermoplastic Wi layer.

The primer is used to bond the thermoplastic resin layer and the release layer, and therefore, the coating film thickness is not particularly limited, but may generally be appropriately selected from the range of 5 to 50 μm. .

Next, the invention of MfjS2 will be explained in detail.

The second invention of the present application is about a method for manufacturing a 7-runt harness, and the difference is that a plurality of Ji through holes for inserting wiring members are formed inside the thermoplastic υ (fat layer) to penetrate through this. A harness band member is formed by arranging plastic resin layers in the width direction, and laminating release layers made of a resin with a higher melting point on both the front and back surfaces of the thermoplastic resin layer. Auxiliary holes for cutting are formed at appropriate intervals, and a break line that crosses all the insertion holes is cut into the harness band part at appropriate intervals.
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After forming rW9 and inserting the wiring members into each of the above-mentioned insertion holes, cut out the side edges along the entire length of the harness band member to form mutually independent harness bands, and then insert each harness band into each wiring member. At the branch section, each harness band is cut at an auxiliary hole for cutting, each wiring member is shaped to fit a predetermined wiring route, and then, Each harness band is heated and pressurized to fuse it to the wiring member.

The second invention of the present application is the harness band of the first invention of the present application,
Therefore, the wiring member, the thermoplastic resin layer, and the mold release layer are the same as those of the above invention, and since the content is similar to that of a shogi player, the explanation thereof will be omitted.

The thermoplastic resin layer is formed, for example, by extrusion molding as a sheet having a cross-sectional shape having a required insertion hole.

The release layer is laminated from both sides of the thermoplastic U1m layer after applying a primer using a roll coater, doctor blade, spray, etc. to one side of the side that will be bonded to the thermoplastic resin layer, and then applying pressure or heating. It is glued under pressure.

In this case, a harness band member in which the thermoplastic resin layer is covered with a release layer may be manufactured simultaneously by the twin-screw extrusion method.

Further, when a primer is used to bond the thermoplastic resin layer and the mold release layer, for example, a hot melt adhesive is used as the primer, and the coating thickness is not limited to the above. , in general, may be appropriately selected from the range of 5.about.50 .mu.Ill.

The hot melt adhesive used here is not particularly limited, but is
It is preferable that the melting point is lower than that of the metal.

In addition, when forming break lines at appropriate intervals on the harness band member, the distance between the break lines depends on the number of wire members to be inserted, wire diameter, resistance to bending force, covering material of the wire member, and thermoplastic resin. It is necessary to take into consideration the strength of the fusion bond between the wiring members and the layers, and to provide sufficient spacing to fix each wiring member to each other by fusion bonding. be done.

The breaking line formed on the harness band member is formed so as not to reach the end of at least one side X of the harness band member in question, for example, leaving an interval of 5· to 10+o+n from the side edge of the harness band member. It is formed like this.

The side edges of the harness band member that are left uncut do not necessarily have to have the above-mentioned laminated Wi structure; rather, in order to save materials and facilitate cutting, only the template layer is laminated at the side edges. It is preferable to configure it so that

Note that the overall length of the harness band member can be set to any length.

Harness bands formed by cutting out the harness band member are arranged at appropriate intervals along the wiring member.

The spacing of this harness band is determined by the number of wiring members, each IQ
It is determined by taking into consideration the rigidity of the member, the branching position of the wiring, the location of the wiring, etc.

To shape the wiring member, for example, find the harness unit or harness before fusing the harness band on a pattern diagram drawn on a T-shaped flat plate, sequentially shift the harness band to a predetermined position, and divide it into a predetermined branch. This is done by bending the required wiring members at certain positions to match each wiring member to its respective pattern.

Fusion of harness band and wiring member by heating and pressurizing
For example, a hot plate may be used to heat and press each harness band to fuse each harness band sequentially, or all the harness bands may be simultaneously heated and pressed to fuse each harness band.

(e) Function According to the seven-runt harness according to the present invention, the wiring member is inserted into the harness band that binds the wiring member, and the harness band is shifted along the wiring member so as to leave an appropriate interval between the harness bands. Also, at the branching point, the harness band is divided between the branched wiring member and the remaining wiring member, and the branched wire and tiai material are shaped and separated. A flat harness unit or a flat harness can be formed by the rrJg process of shifting the rR harness bands to appropriate positions and simultaneously or sequentially heating and pressurizing the harness bands to the wiring member to fuse them, reducing the time and effort required for manufacturing. It has the effect of reducing time.

In this case, since the branch part is constructed so that the harness band in question can be cut at the auxiliary hole for cutting the harness band, cutting at the branch part becomes extremely easy, and work efficiency is significantly improved. It has its own purpose.

In addition, bending of wiring members can be easily and reliably corrected by shifting the harness band and tightening the wiring member, and moreover, it is possible to correct the bending of all wiring members at the same time. can.

In particular, in the curved vA section, twist the harness band as you move! I! By JJ, it has the effect of correcting the bending tendency of the wiring members and also imparting the bending tendency to each wiring member so that all the wiring members line up orderly and bend in the same direction.

Therefore, whether it is a straight wiring section, a curved wiring section, or a branch section where some wiring members are arranged with a curve different from other wiring members, it is possible to easily obtain a good appearance in which each wiring is neatly arranged. Become.

In addition, in the 7 runt harness of the present invention, each wiring member is fused to the thermoplastic resin layer, so the material on the surface of each wiring member, that is, the covering material, is different from the resin of the thermoplastic TJF rM layer. Wiring members such as power lines, electric signal lines, and optical signal transmission lines coated with different coating materials can be freely combined and bundled without any problems.

Furthermore, when the harness band and the wiring member are fused together, they are directly heated and pressurized using a hot plate or the like.
Since the release layer has a higher melting point than the thermoplastic resin layer, there is no risk of it melting and adhering to the hot plate, etc., making it extremely easy to remove the harness or harness unit from the hot plate, etc. It has a function that can be performed.

Further, according to the gJl manufacturing method for a harness according to the present invention, by forming break lines at appropriate intervals in the harness band member, a large number of harness bands are in a state in which the centers of their insertion holes are aligned. By inserting the wiring member into the insertion hole, each wiring member can be inserted into a number of harness bands for each part, further reducing the labor and time of manufacturing. It has an effect that can be reduced.

In particular, when a thermoplastic resin layer is formed by extrusion molding and a release layer is continuously laminated and bonded on both the front and back surfaces, the harness band member can be manufactured continuously to further reduce manufacturing costs. It can also be done.

Furthermore, when all harness bands and wiring members are fused together, the time required for fusion can be minimized by selecting a thermoplastic resin layer.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings, but the present invention is not limited thereto.

FIG. 1 is a cross-sectional view of a harness band member as an intermediate missing item for manufacturing a harness band used in the present invention, and FIGS. 2 to 6 show the steps of an embodiment of the method of the present invention. It is each perspective view shown later.

First, the procedure for making a harness band member as an intermediate product for manufacturing the harness band used in the present invention will be explained.

First, a thermoplastic 13 fat M1 is formed by extrusion.

This thermoplastic 81 fat layer 1 is, for example, shown in FIGS. 1 to 6.
As shown in the figure, it is formed into a sheet shape with a flat cross section and has an insertion hole 2 for inserting a required wiring member 7 therethrough.

The diameter of the insertion hole 2 is equal to or slightly larger than the wiring member 7 inserted therein.

The resin used here is not particularly limited as long as it is a thermoplastic resin that can fix the wiring member 7 by fusion, and examples include polyethylene, polyvinyl chloride, polyester, polyamide, and polyurethane. , polyethylene and its copolymers, polyamide-based hot-melt resins (pilots, polyester-based hot-melt resins, butyral-based hot-melts) 73 (fats, polyvinyl acetate and its copolymers, cellulose derivative-based real-melt resins, polymethyl methacrylate-based hot-melt resins) ... resin, polyvinyl ether type hotmelt resin, polyurethane type hotmelt resin, polycarbonate type hotmelt resin, etc. Here, examples of polyethylene and its copolymers include polyethylene, ethylene-vinyl acetate, etc. Examples include resins such as polymers, ethylene-ethyl acrylate hot melt resins, and ethylene-isobutyl acrylate copolymer hot melt resins I (IIW).

For example, in the case of a harness band used for an automobile harness, when the power lines etc. in the wiring member of the automobile harness are covered with polyvinyl chloride, the above thermoplastic resin layer is formed of polyvinyl chloride, heated, By applying pressure, the two can be fused to each other, and this creates a moated self with a unique characteristic! 11J11 harness is obtained.

The thermoplastic resin layer 1 includes cutting auxiliary holes 10,
In this case, an auxiliary cutting hole having a rectangular cross section is formed along the insertion hole 2, and by cutting the cutting insertion hole 10 at a branch point of the wiring member 7, the workability is significantly improved. It can be improved.

Next, on both the front and back surfaces of the extruded thermoplastic resin layer 1, a mold release layer 3 made of a resin with a higher melting point and α than the extruded thermoplastic resin layer 1 is applied with a primer 4.
The harness band member 5 is formed by laminating and adhering them together.

The mold release layer 3 is laminated onto the thermoplastic resin WJ1 by successive iterations using a known method.

Here, in order to save materials and facilitate cutting of both side edges of the harness band member 5, a release layer 3 having a width wider than the width of the thermoplastic resin Wi1 is used, and both ff1ll of the harness band member 5 are used. At the edge, only the mold release W13 is fullwi
It is configured to be

The primer 4 is applied to one side of the release layer 3 by a roll coater, a doctor blade, a spray, etc. immediately before being laminated onto the thermoplastic resin N1.

The primer 4 may be one that can bond the thermoplastic resin layer 1 and the release layer 3 without heating, but it is preferable to use a hot melt adhesive that is easy to handle and improves workability. . In this case, the melting point of primer 4 is 10% higher than that of thermoplastic resin (polyvinyl chloride) Wll.
An ethylene-ethyl acrylate hot-melt resin having a low temperature of 10.degree.

The mold release layer 3 is not particularly limited as long as it is formed of a resin having a higher melting point than the resin of the thermoplastic resin layer 1, but in order to keep the working temperature as low as possible, it is necessary to It is preferable that the temperature difference in melting point is 100°C or less, particularly preferably 10 to 80°C.

Mold release/i! Examples of the resin forming f3 include polyethylene resin, polypropylene resin, polyethylene terephthalate resin, polyvinyl chloride resin, polyvinylidene chloride resin, and polyamide resin.

When the thermoplastic resin M31 is composed of a polyvinyl chloride resin, it is recommended that the mold release layer 3 be composed of a polyethylene tele7 tl (fat) whose melting point is 10° C. higher than that of the polyvinyl chloride resin.

Next, as shown in FIG. 3, a large number of breaks 129G are formed in the harness band member 5 at appropriate intervals in the direction of the force of the harness. Each breaking line 6 crosses all the insertion holes 2 formed in the thermoplastic resin layer 1, but in this case, it is formed so that both end edges of the harness band member 5 are left uncut over a predetermined width.

The interval between the breaking lines 6 is determined by taking into account the number and line shape of the wiring IQ members 7 to be inserted, resilience against bending force, and the fusion strength between the coating material of the wiring member 7 and the thermoplastic resin layer 1, etc. Therefore, it is necessary to provide sufficient spacing to fix each wiring member to each other; for example, in the case of an automatic JI harness, break lines are formed at intervals of 5 to 10IIIfi.

Further, the uncut width of both side edges is preferably set to such a width that the uncut portions are not broken when the wiring member is inserted into the insertion hole 2, for example, 5 to 10 III
It is said that

After cutting the harness band member 5 on which a large number of break lines 6 have been formed in this way to a required degree of precision, each wiring member 7 is inserted into the corresponding insertion hole 2, as shown in FIG.

The wiring member 7 is not particularly limited, but may include copper wire coated with resin such as polyethylene, aluminum wire, coated metal wire such as iron wire, bare metal wire, optical cable coated with metal or resin, bare wire cable, etc. , generally power lines, electrical signal lines,
A line used as an optical signal transmission line or the like is used.

Thereafter, both sides of the harness band member 5 are cut off to form a large number of independent harness bands 8.

The harness bands 8 are allowed to freely slide along the wiring members 7, and are arranged at appropriate intervals so as to prevent the bundled wiring members 7 from sagging and disrupting their arrangement, as shown in FIG.

The bending tendency of each arrangement member 7 is corrected to some extent by inserting it into the insertion hole 2, and furthermore, by driving the harness band 8, each arrangement member 7 is
Finally, the bending of each wiring member 7 can be reliably corrected.

In a curved wiring section, when the harness band 8 is twisted and slid in the direction in which the wiring members 7 are bent, the original bending tendency of each wiring member 7 is corrected, and the wiring members 7 are arranged in an orderly manner in the same direction. It has a habit of bending.

At the branching part of the wiring, as shown in FIG.
It is only necessary to cut it at a certain point, and by configuring it in this way, branching can be easily achieved. Next, when the harness band 8 is slid while being twisted, the branched wiring members 7 are bent in the same direction while being arranged in an orderly manner.

In this way, the sliding of the harness band 8 corrects the bending tendency of each wiring member 7 in the straight wiring part, and corrects the original bending tendency in the curved and wire wiring part, and makes sure that each wiring member 7 is oriented in the same orderly direction. Because it has a habit of bending,
It is possible to obtain an excellent appearance in which the wiring members 7 are arranged in an orderly manner, whether in a straight line part or a curved part.

After shaping the wiring member 7 to match each wiring pattern as described above, the harness band 8 through which the wiring member 7 is inserted is heated and pressurized all at once using a hot plate or the like.
By fusing the thermoplastic Fj4 resin layer 1 of the harness band 8 and the covering material of each wiring member 7 and cooling it naturally, a flat harness unit or a flat harness according to the present invention can be obtained.

The harness band 8 and the wiring member 7 are
Since the thermoplastic resin layer 1 of is melted and melted, the surface material of the wiring member 7 is made of the same material as the thermoplastic resin layer
It is possible to freely combine and bundle wiring members 7 having different surface materials such as covering materials.

In addition, since both the front and back surfaces of the thermoplastic m-layer 1 are covered with the template layer 3 having a higher melting point than this, there is no possibility that the molten thermoplastic resin layer 1 will fuse to a heated and pressurized surface such as a hot plate. do not have.

It is not necessary to fuse the harness band 8 and the wiring member 7 all at once as described above, and each harness band 8 may be heated and pressurized one by one in sequence.

Note that it is possible to cut off both side edges of the harness band member 5 to form a large number of harness bands 8, and to insert each wiring member 7 through each harness band 8, but in this case, the wiring member #a It takes a lot of effort to insert the wiring member 7.
It is difficult to correct the bending of the material, so it is not practical.'' - Unfavorable.

By passing through each of the above steps, the flat harness for automobiles, etc. of the present invention can be obtained.

This automatic 41 etc. flat harness has the following purchase price.

That is, this flat harness for automobiles, etc. consists of a plurality of wiring members 7 wired along a predetermined surface and harness bands 8 fused to these wiring members 7 at regular intervals, Each harness band 8 is made of a thermoplastic resin layer 1 having a required number of insertion holes 2 for inserting the KfA member through which each member 7 is inserted, and laminated on both the front and back surfaces of this thermoplastic resin layer 1, and The mold release layer 13 is made of jM resin having a higher melting point than the thermoplastic resin layer 1, and the thermoplastic!
3 (Auxiliary cutting holes 10 are formed in the fat W11 at appropriate intervals along the various through holes 2 described in 1- above.

In this case, thermoplastic? A primer 4 is interposed between the J4 resin Jv11 and the template layer 3, thereby increasing the heat η resistance l.
jl It is possible to more easily join the D layer 1 and the release layer 3.

(g) Effects of the Invention As described above, the harness for an automobile, etc. according to the present invention or having the above configuration has a good appearance, there is no confusion of wiring members, and it is easy to perform work such as camouflage, maintenance, and inspection. It has an effect that can be achieved extremely easily.

Further, the harness for an automobile or the like of the present invention can be formed by simply inserting the wiring member into the harness band, placing the harness band along the wiring member at appropriate intervals, and heating and pressurizing it using a Hondo plate or the like. Therefore, the labor and time required for manufacturing can be reduced.

In addition, by simply moving the harness band along the wiring member, you can correct the bending of the wiring member, and by simply moving the harness band along the wiring member while twisting the harness band, the wiring members can be kept in the same direction while being arranged in an orderly manner. Since it is possible to create a desired bending tendency in the wiring member, it is possible to obtain a flat harness with an excellent appearance.

However, since the harness band and each wiring member are fused together by melting the thermoplastic resin layer of the harness band, there is no need for the covering material of the wiring member to be made of the same material as the thermoplastic resin layer. Wiring members of various types can be freely combined and bundled.

Furthermore, when fusing the harness band and the wiring member, they are directly heated and pressurized with a hot plate, etc., but since the release layer has higher dots than the thermoplastic resin layer, it is melted and pressed onto the hot plate etc. This has the effect that there is no risk of fusion and that the harness or the harness unit can be taken out from the main plate etc. very easily and in a short time.

In addition, the harness band is configured so that the harness band can be cut at the auxiliary hole for cutting the harness band at the branching part, making cutting at the branching part extremely easy, which has the effect of significantly improving work efficiency. It is.

According to the flat harness manufacturing method according to the present invention, a large number of harness bands can be easily manufactured into rfJ-ta, and wiring members can be easily inserted into each harness band. This has the effect of further reducing the effort and time required for 12-piece construction.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a harness band member as an intermediate product for manufacturing the harness band used in the present invention, and FIGS. 2 to 61! I is each perspective view showing the procedure for manufacturing a flat harness for an automobile using this. In the figure, 1 is a thermoplastic resin layer, 2 is an insertion hole, 3 is an FA layer, 7 is a wiring member, 8 is a harness band, and 10 is an auxiliary hole for cutting.

Claims (4)

[Claims] (1) Consisting of a plurality of wiring members wired along a predetermined surface and harness bands fused to these wiring members at appropriate intervals, each harness band has a required number of wires to be inserted through each wiring member. It is composed of a thermoplastic resin layer having an insertion hole for inserting a wiring member, and a release layer made of a resin having a higher melting point than the thermoplastic resin layer and laminated on both the front and back surfaces of this thermoplastic resin layer. A flat harness for an automobile, etc., characterized in that the plastic resin layer has cutting auxiliary holes formed at appropriate intervals along each of the insertion holes. (2) A flat harness for an automobile or the like according to claim 1, wherein the thermoplastic resin layer is formed of the same resin as the coating material of the wiring member. (3) A flat harness for an automobile or the like according to claim 1 or 2, wherein the thermoplastic resin layer is formed of a hot melt resin. (4) A plurality of insertion holes for wiring members passing through the thermoplastic resin layer are formed in the width direction of the thermoplastic resin layer, and both the front and back surfaces of the thermoplastic resin layer have a melting point higher than that. A harness band member is formed by laminating a mold release layer made of a resin with a high hardness, and cutting auxiliary holes are formed at appropriate intervals along the insertion hole, and the harness band member is formed at appropriate intervals. A breaking line that crosses all of the insertion holes is formed so as not to reach at least one side edge of the harness band member, and after the wiring member is inserted into each of the insertion holes, the line is cut along the side edge along the entire length of the harness band member. are cut out to form mutually independent harness bands, and then each harness band is placed and moved at appropriate intervals along each wiring member, and at the branching part, each harness band is A method for manufacturing a flat harness for an automobile, etc., comprising cutting the wire, shaping each wiring member to fit a predetermined wiring route, and then heating and pressurizing each harness band to fuse it to the wiring member.